Fluid mosaic model (Synthesis of phospholipids )

Question 1

Step 1

Answer 1

In the cytosol, fatty acids (which are derived from carbohydrates via he glycolytic pathway) are activated by the attachment of the CoA molecule

Question 2

Step 2

Answer 2

The activated fatty acids bond to glycerol - phosphate and are inserted into the cytosolic leaflet of the ER membrane via acyl transferase

Question 3

Step 3

Answer 3

The phosphate is removed by a phosphatase enzyme

Question 4

Step 4

Answer 4

A choline already linked to phosphate is attached via choline phosphotransferase

Question 5

Step 5

Answer 5

Flippases transfer some of the phospholipids to the other leaflet